Seiko - Seiko Quartz Day-Date - No reserve price - 5Y23-8A11 - Men - 1990-1999

Seiko Quartz Day-Date 5Y23-8A11 Vintage 38mm White Dial Stainless Steel Japan

Offered here is a classic Seiko Quartz wristwatch with a clean white dial, bold Arabic numerals, and a practical day-date display at 3 o’clock. It is a highly wearable, understated Seiko design—made for daily use and built around Seiko’s dependable quartz engineering.

This watch presents very well on the wrist with its balanced 38 mm case size and original Seiko-style stainless steel bracelet. The dial layout is especially attractive for collectors who appreciate legibility and restrained vintage Japanese design.

Confirmed details from the watch (read from the photos)
• Brand: SEIKO
• Movement: Quartz (dial marked “SEIKO QUARTZ”)
• Functions: Time + Day/Date (day-date window at 3 o’clock)
• Dial: White dial, Arabic numerals, luminous hands
• Case material: Stainless steel (caseback marked “STAINLESS STEEL”)
• Caseback markings:
• “WATER RESISTANT” (no depth rating stated)
• Reference / Case No.: 5Y23-8A11
• Serial No.: 933185
• Clasp: SEIKO signed clasp with Seiko quartz logo (visible in photos)
• Condition: Running / working (稼働品)

Size
• Case size: 38 mm (as provided)

Manufacturing year (no hallucination)
• The serial number 933185 indicates production in March of a year ending in “9” (Seiko serial convention).
• With the case/movement family 5Y23, this model is generally associated with the late 1980s to 1990s period.
• Therefore, the serial points to: March (year ending in 9), most plausibly within the late-1980s/1990s decade range.

Condition notes (based on images)
• Visible wear and surface marks consistent with age and use, including case/bracelet scuffs.
• Please evaluate all photos carefully for cosmetic condition and details.

A short story for collectors

This is the type of Seiko that represents why vintage Japanese watches are so widely collected in Europe: practical day-date functionality, clear typography, and a straightforward design language that still feels modern. It is an honest daily-wear vintage Seiko—simple, legible, and built to be used.

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Shipping, taxes, and important notes (as requested)

Safely packed and shipped by DHL or Japan Post (delivery time: 1–2 weeks).
Import duties, taxes, and fees are not included and are the buyer’s responsibility.
Please check all images carefully before bidding.

We strive to represent our products accurately, but colors may vary slightly due to differences in screen displays.
Thank you for your bid.

Seiko
Quartz
Vintage
DayDate
Arabic
Luminous
StainlessSteel
Japan
5Y23
8A11
A4
WaterResistant
Bracelet
Mens
38mm
Classic
Everyday
Collectible